ASTM D5991-1996(2002) 聚乙烯对酞酰小片中聚氯乙烯污染的分离和鉴定的标准操作
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【英文标准名称】:StandardPracticeforSeparationandIdentificationofPoly(VinylChloride)(PVC)ContaminationinPoly(EthyleneTerephthalate)(PET)Flake
【原文标准名称】:聚乙烯对酞酰小片中聚氯乙烯污染的分离和鉴定的标准操作
【标准号】:ASTMD5991-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.95
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contamination;poly(ethyleneterephthalate)(PET);poly(vinylchloride)(PVC);recycledplastics
【摘要】:PresenceofevenlowconcentrationsofPVCinrecycledPETflakesmayresultinequipmentcorrosionproblemsduringprocessing.ThelevelofPVCcontaminationmayalsodictatethemarketforuseoftherecycledpolymerinsecondaryproducts.Procedurespresentedinthispracticeareusedtoidentifyand,ifdesired,estimatetheconcentrationofPVCcontaminationinrecycledPETflakes.1.1Thispracticecoversfourproceduresforseparationandqualitativeidentificationofpoly(vinylchloride)(PVC)contaminationinpoly(ethyleneterephthalate)(PET)flakes.Note18212;Althoughnotpresentedasaquantitativemethod,procedurespresentedinthispracticemaybeusedtoprovidequantitativeresultsatthediscretionoftheuser.Theuserassumestheresponsibilitytoverifythereproducibilityofquantitativeresults.DatafromanindependentsourcesuggestaPVCdetectionlevelof200ppm(w/w)basedonanoriginalsampleweightof454g.1.2ProcedureAisbasedondifferentfluorescenceofPVCandPETwhenthesepolymersareexposedtoultraviolet(UV)light.1.3ProcedureBisanoventestbaseduponthecharringofPVCwhenitisheatedinairat235C.1.4ProceduresCandDaredyetestsbasedondifferentialstainingofPVCandPET.Note28212;Otherpolymers(forexample,PETG)alsoabsorbthestainorbrightener.SuchinterferenceswillresultinfalsepositiveidentificationofPVCasthecontaminant.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardsseeSection8.Note38212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:聚乙烯对酞酰小片中聚氯乙烯污染的分离和鉴定的标准操作
【标准号】:ASTMD5991-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.95
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contamination;poly(ethyleneterephthalate)(PET);poly(vinylchloride)(PVC);recycledplastics
【摘要】:PresenceofevenlowconcentrationsofPVCinrecycledPETflakesmayresultinequipmentcorrosionproblemsduringprocessing.ThelevelofPVCcontaminationmayalsodictatethemarketforuseoftherecycledpolymerinsecondaryproducts.Procedurespresentedinthispracticeareusedtoidentifyand,ifdesired,estimatetheconcentrationofPVCcontaminationinrecycledPETflakes.1.1Thispracticecoversfourproceduresforseparationandqualitativeidentificationofpoly(vinylchloride)(PVC)contaminationinpoly(ethyleneterephthalate)(PET)flakes.Note18212;Althoughnotpresentedasaquantitativemethod,procedurespresentedinthispracticemaybeusedtoprovidequantitativeresultsatthediscretionoftheuser.Theuserassumestheresponsibilitytoverifythereproducibilityofquantitativeresults.DatafromanindependentsourcesuggestaPVCdetectionlevelof200ppm(w/w)basedonanoriginalsampleweightof454g.1.2ProcedureAisbasedondifferentfluorescenceofPVCandPETwhenthesepolymersareexposedtoultraviolet(UV)light.1.3ProcedureBisanoventestbaseduponthecharringofPVCwhenitisheatedinairat235C.1.4ProceduresCandDaredyetestsbasedondifferentialstainingofPVCandPET.Note28212;Otherpolymers(forexample,PETG)alsoabsorbthestainorbrightener.SuchinterferenceswillresultinfalsepositiveidentificationofPVCasthecontaminant.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardsseeSection8.Note38212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:3P.;A4
【正文语种】:
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